{
   "epochs": [ {
      "calculation_time": "13370688472143902",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377532909985386",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F8EBAD8EEF6DC1754EA5776BD37D4E418D16259DE43651FB14AB6D7B73669149",
   "next_scheduled_calculation_time": "13378137709985444"
}
